Date indicating or registering apparatus



July 5, 1932- N. o. wlLLlNDER 1,866,071

DATE INDICATING' OR REGISTERING APPARATUS FiledJuly 13, 1931 2 Sheets-Sheet l July 5, 1932. N. o. WILLINDER DATE INDICATING OR REGISTERING APPARATUS Filed July 15. 1951 2 Sheets-Sheet 2 a v w W 5 73 a. Wage,

Patented July 5, 1932 PATEN nrLs os z'nnv WILLINDEB, or Jnnsnnmu, sw:-.u;m'in- 7 DATE INDICA'DING on REGISTERING APPARATUS i.

Application filed July 13,1931, Serial N0. 55 0,519 ,and inswe'deaiuly s, 1930.

This invention relates to date indicating or registering apparatus, which may be used.

as a calendar clock or a date stamp and has for its ob ect to provide an apparatus of this lrind which shall besimplein construction.

" vancing wheels, adapted to be rotated in a known manner and independently of one another, and a drivingmember, which is so arranged in relation to these wheels that 1t'adcanoes the day advancing wheel one step.

per day, adjusts the month advancing Wheel to a new month at the end of the month and valsov adjusts the year advancing wheel to a.

new year at the end of the year, the month advancing wheel being provided with twelve notches corresponding to the number of months in a year, and'of difi'e'rent. depths according to the number of daysin the corresponding months, and an advancingpin, which is connected with the said [driving member and serves to advance the, month advancin' wheel and which is controlled by a deflecting lever extended in front of the month advancing wheel and 'arcam path which is arranged .to adjust itself'ac-' cording to the depth of the notches in the month advancing wheel, in such away that, when the day advancing wheel is advanced by the driving member, the advancingjpin is prevented from engaging with the month advancing wheel by the deflecting lever until the end of the month and only at the end of the month, when a stop provided on the day advancing wheel moves the deflecting invention, Figure 1 is a plan view of the complete apparatus. Figure 2 is a vertical section on the line AA of Figure 1, with the discs, which bear the numerals represe'nting the days, months and years, omitted,

tails ofjtheapparatus;

order that the remaining members. maybe more clearlysee'n. Figure 3 is'a section on the same line as Figure 2 ,but showing certain members indifferent positiona Fig urev dis a vertical section, on the lin'/B-"B o1": Figural, showing some members in" other positions.- Figures 5 and Gare views of dedrawings the clock Referring now to the inechanism itself, whichjdrivesithe date registering apparatus with a'calendar clock,'is

omitted from the drawingsgiThe date registerin'g apparatus itselfcomprises a frame consisting oftwo plates l, l lconnected with eachjotl er by means of spacing-boltaa driving member 2, rotatable about a fixed axis2? be ng located between the two plates,'this driv ng memberjbein'g actuated by the clock Lmec'hanism, a pin-for example secured t0 the .hour wheel of the clock meeh'anism being arranged to come into contact once daily with a projection?) on the driving member 2, the drivlng member being"os'cillated thereby. The latter carries .a pawl fmember 4-which when an oscillationof themember'Z takes place under'the action of the pin the hour wheel of the clock mechanism engages with a toothed day advancing-wl1eel-5,'which 1s providedwith thirty-one teeth, andthen moves this wheel round by one tooth. The

teeth of the wheel 5 correspond to the days of the months in which there are thirty soiie oscillation of; the member Qreturns itito its initial position T nected to a sleeve 71Wh'i0l1 is rotatablylo- Gated on a Sh 8 Ed betweenlthe-two I latesfl, 1 a and-carries ad d ure 1) with the day numbers-l, 2,13 31 'marked'on the periphery thereof. =To prevent an accidental adjustment ofthe day advancing wheel 5, 'a lever 10- is'provided witha locking pin ll ad'apted to engage days. The driving member 2 isunder'the zinfluence of a leaf-spring G, which after each The day advancing wheel 5 con- J with the teeth o f'the-wheel', this lever, in the a position of; rest of the tdrivingl'member v2 (Figure 3), being} in turn locked by, a pin '12 locatedon the driving-member, the pin TIOFF K Ef 12 being adapted to engage with a notch 13 (Figure 4 in the locking'lever 10.

The driving member 2 is further'provided with a finger 14, which is rotatably connectec thereto (asmay best be seen from Figures 1 and 4), and the object of which is, as isdefscribed-"inxmore detail hereinafter, on one hand by the cooperation ofits'front edge 14 and a transverse pin 20 providedon the day-advancing wheel to advance the dayadvancing wheel 5 by as many more teeth as the difference between the number of days in the correspondingmonthand thirty-one days, at the-end oft-the months havi nless than thirty-one days, by the same oscillation of the driving member 2 as that by which the pawl 4 ordinarily advances the day ad'- vancing wheel-5 by onesingle tooth and on the other hand byjmeans of a transverse'pin secured to' the finger 14, at the end of each month advances a! month advancing 'wheel 16 and at the end of theyear advances a year advancingwheel 17 also. The month advancing wheel 16 has in its periphery twelve notches corresponding to the nume ber of months in a year. The year advancing wheel 17 here shown by way of exam le as having twelve notchescorresponding to twelve years, themaximum period of time the calendar clock here illustrated will run. I r i I f When the clock mechanism'is in operation 'i' and the driving member 2 advances the day- Q advancing wheel 5,"the pin 15 of the finger I 14 slides on toa'ca-m path 18, which is formed by the arcuate upperedge of a rotatable defleeting lever 19, and is thereby prevented from coming into engagement with the month advancing wheel 16provided with twelve notches, except when the said month advancingwheel is to be adjustedto a new month, in whichcase the transverse pin 20 of the day advancing wheel 5 raises the lever 19'by its edge 19 in such away that'the pin 15 of the finger 14 is then permitted to en- "gage with a'notch in the month advancing wheel '16, in order to advance the latter by "one notch. As will be seen from the draw in'gs, the cam path 18 is outside the circumference of the month advancing wheel 16.

The month advancing wheel 16 is rigidly connected with asleeve 21, which is-loosely mounted on the sleeve 7 connectedlwith the dayadvancing wheel 5, so that the two sleeves can rotate independently of one an-. other. The sleeve 21 carries a month-disc 22 V igure 1) with the numbers 1, 2 v. 12 corinarked on the responding to the months periphery thereof.

The depth of each of the twelve notches of the month advancing Y wheel 16 corresponds tothenumber'of days in the corresponding month, in such 'a way that the notches 1 for months'with thirty 7 days are deeper than the notches for months with the pin rests in one ofthenotches 32. guide lever63 isalso provided witha cam path 35. (Figures 2 and 3), which lies partly thirty-one days, while the notch for the month of February is still deeper than those for months with thirty days. For the sake .of clearness, the deepest notch, i. e. the one for the month of February, bears the reference numeral 28, .the four next-deepest notches, which are all equally deep and correspond to the months with thirty days, i. e.

-April, June, September and November, are

numbered 24, while the shallowest notches, seven iii number, which correspond to the months with" thirty-one days, January, March, May, July, August, October and December, are numbered 25 (Figure 4). The

succession of the notches of varying depths around the periphery of the disc- 16 corresponds to the successionof the months in the year. r

A guide lever 26 (Figure 5), which is adapted to berotatable in a vertical plane is provided with a locking-pin 27, which is arranged to cooperate with the notches in the month advancing wheel 16 in such a way that'the guide lever 26 occupies a lower orhigher position, according to the depth of the notch in which the locking pin 27 lies. The guide lever 26 is'provided with a cam path 28, which lies partly outside the circumference of the month advancing wheel 16, for the pin 15, the purpose of which will be described hereinafter.

The year advancing wheel 17, whichis arranged co-aXially' with themonth advancing wheel 16 and the day advancing wheel is firmfly seated on a sleeve 29, which is loosely mounte'don the sleeve 21, connected with the month advancing wheel, so that it can rotate independently of'the sleeve 21. The sleeve correspond to the normal years. With the notches 31, 32 in the year advancing wheel 17 a guide lever 33 cooperates, which is adapted to be rotated in a vertical plane (Figures 1-3) the guide lever 33 being provided with a locking pin 34 and constructed similarly to the guide lever 26 corresponding to the month advancing wheel 16. The locking pin 34 on the guide lever 33 is adapted to cooperate with the notohes n the year advancing wheel 17' in such a way that the guide lever can occupy twoditferent positions,.namely, the

higher one when the locking pin 34 rests in one of the notches 31, and the lower when The outside the circumference of the year advancing wheel, onto which path the pin 15 can 9 slide, when'thc locking-pin 34 of the guide-lever 33 catches in one of the shallower notches 31 in the year advancingwheel 17, corresponding to the leap years; 7 v

As may be seen from' Figure'l, the pin 15 is sufficiently long toenable it to advance the year advancing wheel also, when this isto'b-e advanced. VVhen the driving member 2 is in its normal position (Figure 3), the pin 12 on the driving member 2 engages in the notches 36 or 37 in the guide levers 26 and 33,

fthe lever 26 is so low that the pin 20 of the I day-advancing wheel has to raise the controlin order to lock the latter in the positi'on'in whichthe pin 27 or 34- seated thereon engages with the month or year advancing wheel respectively. l i

When the clock mechanism operates, the pin secured to the hour wheel thereof comes into contact once daily with the projection 3 of the driving member 2, so that this latter is oscillated outof the position illustrated in Figure 3, and the pawl member 4 engages with the day advancing wheel 5, so as'to advance it by one tooth or step. After each such oscil lation, the driving member 2 is returned toits initial position bythe' spring 6. Each time the driving member 2 is rotated inthe manner just described in-orderto advance the day-advancing wheel 5 one step, the pin slides first on the cam-path 28ofthe lever V 26 and then on the cam-path 18 of the deflecting lever 19, without being able-to come into contact with the month-advancing wheel 16, repeating this motion upon each movement of the driving member 2, until the pin 20 of the day-advancing wheel 5, towards the end of themonth, engages the underside 19 of the lever 19 and gradually raises the lever 19 upwards into the position shown in Figure 2, so that the pin 15 now slides upon the last advancing stroke in the waning month be-.

tween the cam-path 28 and the lever 19 and engages with the month-advancing Wheel 16, so as to advance it one step. T

The altitude ofthe cam-path 28 thus .de

termines the moment when the pin'151can come under the rising deflecting lever 19, in order to engage with the month-advancing wheel. When the locking-pin 27 of-the guidelever 26 rests in the deep notch 23 ,inthe month-advancing wheel 16, corresponding to the month of February, the cam-path 28 of lever 19 a comparatively small amount only,

in order to permit 'the pin 15 to pass between the cam-path 28and the defiectin'g lever .19, so that the pin'15 can then reach the monthadvancing wheel '16 earlier (when the dayadvancing wheel has rotated through twenty- "eight steps) But if the locking-pin 27 of the lever 26 rests in one of the notches 24 i in the month-advancingv wheel, the cam-path 28 is so high that the day-advancing wheel 5 must advance two notches orteeth further,

andthe lever 19. -When the locking-pin 27 a in order that the lever 19 may be carried upwards by the pin 20 to such an extent that the pin 15 can pass between the cam path 28 of the lever 26 rests in one of the shallower notches in the month-advancing wheel 16,

lever 26 rests in "the deep notch23 in the month-advancing wheel 16, corresponding to the month of- February, the advancing-finger '14Ecomes, towards the end" of the month, compa-ratively earl-y into engagement with the pin 20 and then advances the day-advancing lwhe'el'5, which is now at the 28th day. of the month for the first time, four steps in one operation upon the deflection of the driving member 2, that is to say,-as the notch 23 corresponds tothe month of, February, which usually has twentyei ght days, from 'the28th February to the lst'March, whilst atthe same;

time the pin 15 of the finger 1 1 advancesthe month-advancing wheel 16 by one step. Con

ditions are similar when the locking-pin 27 rests in the notches '24 in the month-advancing wheel 16"co1responding to the months withthirty days, but the finger 14 now ad- I vvances the day-advancing wheel 5, which until the end of the month was advanced by, 105

the advancing-catch 1 tooth by tooth, by two teeth at the last stroke, whilst the alteration of the month is simultaneously effected. If such an'extra advancement of the day-advanoing wheel 5, which has altogether thirtyno one teeth or advancing-degrees, were not to take place, the day-advancing wheel 5, which would be advanced ;one "degree at a time, would be out of agreement with the monthadvancing wheel 16 when the latter is ad- In justed to another month} As soon as the monthhas been advanced one step-by the pin 15,

the 'l'ever'19 falls backfor the ti'mebeing into its deflecting position, inwhich it prevents the pin '15, which moveswith the driving member 2when the day-advancing wheel 5 is advanced, from coming intocontact with the month-advancing wheel, until this is to be adj usted tofthe next month,

As may be seenfrom the drawings, the yearadvancing wheel 17 is so much smaller than the month advancing wheel16 that the pin 15, although it reaches" as far as to the-yearadvancing. wheel, can. only engage therein a dvancing wheel '16 (ill when thepin 15 is in the deepest notch 23 in the month-advancingwheel 16., In Figure 2 the pin-15 is shown in engagement with the said notch 23, and the corresponding numbers on the discs 9, 22 and 30 are 31122 9,

that is to say, corresponding to the last day of the year 1929. year-advancing wheel has now to take place. When the pin'l5 engages in the notch 23 in the month-advancing wheel 16, it also comes into engagement with the year-advancing -wheel, so that this is then adva'ncedone step togetherwith the month advancing wheel.

. In leapyears, the locking-pin 34 of the lever 33rests in one of the shallower notches 31in the year-advancing wheel 17, the lever ,33and'the cam-path 35 thereon occupying such a high position that, when the pin 27 of :the lever 26 rests in the deepest notch 23 in the month-advancing wheel 16, corresponding to the month of February, and the lever 26Vwith the cam path 28 consequently occupies'its lowest position, the cam path 35 of the lever 33, relatively to the cam path 28 of the lever 26, lies as much higher as corresponds to an extra advancement of oneday of the wheel in theadvancement period at the end of a month Th e pin is thus led on the cam path 35-instead of on the cam path 28, and the day-advancing wheel 5 must then be rotatedone-more notch or tooth than is the case in, a month of February with twentyeight days, so that the lever 19 must be raised so high that the pin 15 can pass between the cam path'35 and the lever 19.

Consequently, the advancing pin 14 with its contact edge 14 comes into contact with the pin of the day advancing wheel? one step iater than in a month of February with twenty-eightdays, and the day advancing wheel 5 is advanced'only three steps or teeth instead of four, as previously described, while the month advancing wheel 16 of course is also advanced one notch again by the pin 15.

-The adjustment of the month advancing V wheelto the lstMarch is thereby postponed from the 28th February to the 29th February.

When the pin 3-4 of thelever 33 rests in one of the nine deep notches 32 in the year ad.-

vancing wheel 17, the cam path 35 of this lever 1s so low that t has no nfluence on the month adjusting means.

I ;V In the constructional form illustrated in the drawings, the day, month and year ad vancing wheels are operatively connected with drum-shaped discs, whichare provided with numbers corresponding to days, months and years-respectively on the cylindrical .pe

ripheries. Ifthese numbers'are formed similariy to printing-type and combined with a pressing-surface, a date-stamp is formed.

7 The day, month and year discs may however be flat, and be provided on the outer circular Portion of e rsurfaces with the said -numc ers. r

The adjustment of the V the case where on, this wheel teweriadvzinc- The constructional form herein described and illustrated may, of course, be varied in many respects without exceeding the scope of the'invention. For example, instead of the advancing pin 15 itself sliding on the cam paths 28 and 18, it could be operatively connected to a member specially provided for this purpose. Again, the cam paths 28 and 35 need not be jointed to the levers 26 and 33 themselves, as will be evident, but may be provided on separate discs, which may if desired be adjustably secured tothe levers 26 and 33. I V

Having now described my invention, what I claim as new and desire to secure by Letters Patent is: I

1. Date indicating apparatus comprising rotatable and independent day, month and year advancing wheels and a driving memher, which is so arranged, in relation to the said wheels that it advances the day advancing wheel one step daily, adjusts the month advancing wheel to a new month at the end i of a month and also adjusts the year advancing wheel to a new year at the end of a year, the month advancingwheel being provided with twelve notches corresponding to the vmonths ina year, the depth of each notch corresponding to. the number of days in the month, characterized by that an advancing pin, which isoperatively connected with the said driving memberandserves to advance the month advancing wheel, is controlled by a deflecting lever extending in front of the month advancing wheel, and by a cam path, which is adjusted in. height according to the depth of the notches in the month advancing wheel, in such a manner that, when the day advancing wheel is advanced by the driving member, the advancing pin is prevented,by the 'deflectinglever, from engaging with the month advancing wheel until towards the end of the month, and only towards the end of the month, when a pin provided on the day advancing wheel moves the deflecting" lever, according to the adjustment of the cam path serving as a guide for the advancing 'pin, is thelatter permitted topass sooner or later under the deflecting lever so as to come mto engagement with the month advancing ing operations were eifected than correspond to its division.

in claim 1, in which the advancing pin serves to advance the month advancing wheel, and" at the same time serves as advancing member for the year advancing wheel arranged coaxially with the month advancing-wheel, the

year advancing wheel having a diameter so 7 much smaller than that of the month advancing wheel that the advancing pin, although it reaches to the year advancing wheel, can only 7 come into engagement therewith when it isin the deepest notch in the month advancing wheel. c 4. Date indicating apparatus as claimed in claim 1, in which with the cam path an-a.

other cam path, which is adjustable independently thereof, is associated, which, in

the case of a leap year, serves to guide the advancing pin, and then leads it, in the correct manner for advancing the year advancing wheel in a leap year, into engagement with the said year advancing wheel.

5. Date indicating apparatus as claimed in claim 1, in which, the campaths are provided on guide levers, which are rotatable independently of one another, and therposition of which is determined bythe monthadvancing wheel and the year advancing wheel, by means of the notches provided therein. 7 r r In witness whereof I have hereunto signed my name. a

' NILS OSKAR WILLINDER' 

